Help with an error message in R

Hi,

Did you use the suggested checks? What's their output?

Also, when you have an issue like this, you should not just share the error, as we are not able to recreate the issue and figure out the problem. Try and create a reprex next time. A reprex consists of the minimal code and data needed to recreate the issue/question you're having. You can find instructions how to build and share one here:

PJ